Bending-resistant bamboo plywood

Abstract

The utility model relates to a kind of bending-resistant bamboo plywood, including board body and the framework arranged in board body, the board body includes mutually adhering upper plate and lower plate, the framework is arranged between upper plate and lower plate, recess for the framework embedding installation is set up on the side of upper plate and lower plate relative, the framework is fixedly connected between upper plate and lower plate.The utility model has the beneficial effect that: setting framework in board body, framework can effectively support board body, thereby effectively improve the performance of bamboo plywood overall bending-resistant, and make its higher strength, recess can make the connection of framework and board body more stable, while effectively reducing the thickness of board body.

Description

Technical Field

[0001] This utility model relates to the field of bamboo plywood technology, and in particular to a bending-resistant bamboo plywood. Background Technology

[0002] Bamboo plywood is a multi-layered composite building material made from moso bamboo. The bamboo is softened at high temperatures, rolled flat, then glued and laminated, and finally formed under high pressure. Its production process includes bamboo pretreatment, phenolic resin bonding, and hot-pressing curing. It possesses properties such as compressive and flexural strength, wear resistance, and moisture resistance, and is mainly used in building formwork, bridge and tunnel support panels, vehicle flooring, and furniture manufacturing. Due to bamboo's short growth cycle and renewable resources, it has been a timber substitute supported by national forestry policies since the late 20th century.

[0003] In engineering construction, before pouring concrete components, a model conforming to the shape and dimensions specified in the design drawings must be made. The material used to form this model is called a template. Simply put, a template is a mold into which concrete is poured to create the component. Templates are generally classified as steel templates, wooden templates, and composite wooden templates. Using bamboo plywood as templates results in smooth and flat surfaces, saving on plastering work. Therefore, the flatness of the bamboo plywood is crucial when using it as template, as it determines the flatness of the component's surface. If the bamboo plywood is warped, the poured component will also be warped, affecting the quality of the pouring.

[0004] However, bamboo plywood is made of bamboo strips and has limited bending resistance. Especially under certain high-pressure environments, bamboo plywood is prone to bending, which can damage the plywood and shorten its service life. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bending resistant bamboo plywood to solve the above problems.

[0006] The technical solution of this utility model is implemented as follows: a bending-resistant bamboo plywood includes a board body and a skeleton disposed in the board body. The board body includes an upper board and a lower board that are attached to each other. The skeleton is disposed between the upper board and the lower board. Grooves for embedding and installing the skeleton are provided on opposite sides of the upper board and the lower board. The skeleton is fixedly connected to the upper board and the lower board.

[0007] By adopting the above technical solution, a skeleton is set inside the board. The skeleton can effectively support the board, thereby effectively improving the overall bending resistance of the bamboo plywood and making it stronger. The groove can make the connection between the skeleton and the board more stable, while effectively reducing the thickness of the board.

[0008] The utility model is further provided with: the sum of the thicknesses of the upper plate and the lower plate is set as L1, the outer diameter of the framework is set as L2, wherein the ratio of L2 to L1 is not greater than 1 / 2.

[0009] By adopting the above technical solution, it can effectively avoid that the groove is too deep, which causes the upper plate or the lower plate to be too thin, prevent damage, and prolong the service life of the bamboo plastic plate.

[0010] The utility model is further provided with: the spacing between the grooves is set as L3, wherein L3 is greater than L2, and the gap between the outer wall of the framework and the inner wall of the groove is set as 0.5-2.5 mm.

[0011] By adopting the above technical solution, a gap is reserved between the framework and the inner wall of the groove for adhesive to enter, which improves the stability of connection and makes the installation of the framework more convenient.

[0012] The utility model is further provided with: glass fibers are laid between the upper plate and the lower plate, and between the framework and the groove.

[0013] By adopting the above technical solution, glass fibers can effectively perform buffer transition between the framework and the upper plate and the lower plate, further improving the overall strength, bending resistance and tensile resistance of the bamboo plastic plate, and meanwhile, glass fibers have flame retardancy.

[0014] The utility model is further provided with: adhesive is filled between the upper plate and the lower plate, and between the framework and the groove.

[0015] By adopting the above technical solution, the adhesive can effectively connect the framework with the upper plate and the lower plate, so that the connection is firmer and more stable.

[0016] The utility model is further provided with: the framework is formed by splicing and fixing a plurality of metal square tubes, the joints are fixed by welding, the framework is arranged in a shape of a "mouth" or a "tian", the upper plate and the lower plate are made of bamboo plastic plates, and the edge of the framework is arranged close to the edge of the plate body.

[0017] By adopting the above technical solution, the framework can effectively support the plate body, and improve the overall bending resistance of the plate body.

[0018] The utility model is further provided with: the framework is fixedly connected with the upper plate and the lower plate by rivets, two ends of the rivet are respectively pressed against the outer sides of the upper plate and the lower plate, and a plurality of through holes for the rivets to pass through are arranged on the upper plate, the framework and the lower plate.

[0019] By adopting the above technical solution, the rivets further improve the connection strength between the framework and the upper plate and the lower plate, so that separation or cracking is not easy to occur, and the through holes make the installation of the rivets more convenient. Description of Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 for Figure 2 A schematic diagram of the structure of this utility model (A); Figure 4 This is a perspective view of the internal structure of this utility model; Figure 5 This is a schematic diagram of the internal structure of this utility model; Figure 6 for Figure 5 A schematic diagram of the structure of this utility model (B). Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-6 As shown, this utility model discloses a bending-resistant bamboo plywood, including a board body and a frame 3 disposed in the board body. The board body includes an upper board 1 and a lower board 2 that are attached to each other. The frame 3 is disposed between the upper board 1 and the lower board 2. Grooves 4 for embedding and installing the frame 3 are provided on opposite sides of the upper board 1 and the lower board 2. The frame 3 is fixedly connected to the upper board 1 and the lower board 2.

[0024] By adopting the above technical solution, a skeleton 3 is set in the board body. The skeleton 3 can effectively support the board body, thereby effectively improving the overall bending resistance of the bamboo plywood and making it stronger. The groove 4 can make the connection between the skeleton 3 and the board body more stable, and at the same time effectively reduce the thickness of the board body.

[0025] In this embodiment of the utility model, the thickness of the upper plate 1 and the lower plate 2 is set as L1, and the outer diameter of the skeleton 3 is set as L2, wherein the ratio of L2 to L1 is not greater than 1 / 2.

[0026] By adopting the above technical solution, it can effectively prevent the upper plate 1 or the lower plate 2 from becoming too thin caused by an excessively deep groove 4, avoid damage, and prolong the service life of the bamboo plywood.

[0027] In the embodiment of the present utility model, the spacing between the grooves 4 is set as L3, wherein L3 is greater than L2, and the gap between the outer wall of the framework 3 and the inner wall of the groove 4 is set as 0.5-2.5 mm.

[0028] By adopting the above technical solution, a gap is reserved between the framework 3 and the inner wall of the groove 4 for adhesive to enter, which improves the connection stability and facilitates the installation of the framework 3.

[0029] In the embodiment of the present utility model, glass fibers are laid between the upper plate 1 and the lower plate 2, and between the framework 3 and the groove 4.

[0030] By adopting the above technical solution, glass fibers can effectively achieve buffer transition between the framework 3 and the upper plate 1 as well as the lower plate 2, further improving the overall strength, bending resistance and tensile resistance of the bamboo plywood, and meanwhile, glass fibers have flame retardancy.

[0031] In the embodiment of the present utility model, adhesive is filled between the upper plate 1 and the lower plate 2, and between the framework 3 and the groove 4.

[0032] By adopting the above technical solution, the adhesive can effectively connect the framework 3 with the upper plate 1 and the lower plate 2, making the connection firmer and more stable.

[0033] In the embodiment of the present utility model, the framework 3 is formed by splicing and fixing a plurality of metal square tubes, and the joints are fixed by welding. The framework 3 is arranged in a "口" shape or a "田" shape. The upper plate 1 and the lower plate 2 are made of bamboo plywood, and the edges of the framework 3 are arranged close to the edges of the plate body.

[0034] By adopting the above technical solution, the framework 3 can effectively support the plate body and improve the overall bending resistance of the plate body.

[0035] In the embodiment of the present utility model, the framework 3 is fixedly connected with the upper plate 1 and the lower plate 2 via rivets 5, two ends of each rivet 5 are respectively pressed against the outer sides of the upper plate 1 and the lower plate 2, and a plurality of through holes 6 for the rivets 5 to pass through are formed on the upper plate 1, the framework 3 and the lower plate 2.

[0036] By adopting the above technical solution, the rivets 5 further improve the connection strength between the framework 3 and the upper plate 1 as well as the lower plate 2, so that separation or cracking is not prone to occur, and the through holes 6 make the installation of the rivets 5 more convenient.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of flexurally resistant bamboo plywood, characterized in that, Comprises a plate body and a framework (3) arranged inside the plate body, wherein the plate body comprises an upper plate (1) and a lower plate (2) that are bonded to each other, the framework (3) is arranged between the upper plate (1) and the lower plate (2), grooves (4) for embedding and mounting the framework (3) are formed on opposite sides of the upper plate (1) and the lower plate (2), and the framework (3) is fixedly connected between the upper plate (1) and the lower plate (2).

2. The flexurally resistant bamboo plywood according to claim 1, characterized in that, The sum of the thicknesses of the upper plate (1) and the lower plate (2) is designated as L1, the outer diameter of the framework (3) is designated as L2, and the ratio of L2 to L1 is not greater than 1 / 2.

3. The bending-resistant bamboo plywood according to claim 2, characterized in that, The spacing between the grooves (4) is designated as L3, wherein L3 is greater than L2, and the gap between the outer wall of the framework (3) and the inner wall of the groove (4) is 0.5-2.5 mm.

4. The flexurally resistant bamboo plywood according to claim 1, characterized in that, Glass fibers are laid between the upper plate (1) and the lower plate (2) as well as between the framework (3) and the grooves (4).

5. The flexurally resistant bamboo plywood according to claim 1, characterized in that, Adhesive is filled between the upper plate (1) and the lower plate (2) as well as between the framework (3) and the grooves (4).

6. The flexurally resistant bamboo plywood according to claim 1, characterized in that, The framework (3) is formed by splicing and fixing a plurality of metal square tubes, and the joints are fixed by welding; the framework (3) is in a "square-frame" shape or a "grid-field" shape, the upper plate (1) and the lower plate (2) are bamboo plywood, and the edge of the framework (3) is arranged close to the edge of the plate body.

7. The flexurally resistant bamboo plywood according to claim 1, characterized in that, The framework (3) is fixedly connected with the upper plate (1) and the lower plate (2) through rivets (5), two ends of each rivet (5) are respectively pressed against the outer sides of the upper plate (1) and the lower plate (2), and a plurality of through holes (6) for the rivets (5) to pass through are formed on the upper plate (1), the framework (3) and the lower plate (2).

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